Home / 36,136.48-54,199.32-12,447.76

Finding the Fourth Proportional to 36,136.48, 54,199.32 and 12,447.76

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Solution

The fourth proportional to 36,136.48, 54,199.32 and 12,447.76 is: 18,669.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,136.48 : 54,199.32 = 12,447.76 : x
  2. Step 2: Convert to fraction form
    36,136.48/54,199.32 = 12,447.76/x
  3. Step 3: Cross multiply
    36,136.48x = 54,199.32 × 12,447.76
  4. Step 4: Simplify right side
    36,136.48x = 674,660,127.52
  5. Step 5: Solve for x
    x = 674,660,127.52/36,136.48
  6. Step 6: Final answer
    x = 18,669.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.